Flavonoids from two Turkish Centaurea species and their chemotaxonomic implications Journal title: Trends in Phytochemical Research Authors: Sharmeen Uddin, Lillian Alnsour, Peter Segun, Huseyin Servi, Sezgin Celik, R. Süleyman Göktürk, Afaf... Subject(s): Food Science and Technology, Photochemistry, Pharmacognosy